using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authorization;
using Volo.Abp;
using Volo.Abp.Application.Dtos;
using Volo.Abp.Application.Services;
using Volo.Abp.AuditLogging;
using Volo.Abp.Uow;
using static Sozsoft.Platform.Data.Seeds.SeedConsts;

namespace Sozsoft.Platform.AuditLogs;

public interface IAuditLogAppService
    : ICrudAppService<AuditLogDto, Guid>
{

}

[Authorize(AppCodes.IdentityManagement.AuditLogs)]
public class AuditLogAppService
    : CrudAppService<AuditLog, AuditLogDto, Guid>
    , IAuditLogAppService
{
    public AuditLogAppService(IAuditLogRepository auditLogRepository) : base(auditLogRepository)
    {
    }

    public override async Task<AuditLogDto> GetAsync(Guid id)
    {
        var entity = await Repository.GetAsync(id, includeDetails: true);

        return await MapToGetOutputDtoAsync(entity);
    }

    [UnitOfWork]
    public override async Task<PagedResultDto<AuditLogDto>> GetListAsync(PagedAndSortedResultRequestDto input)
    {
        var query = await CreateFilteredQueryAsync(input);

        var totalCount = await AsyncExecuter.CountAsync(query);

        query = ApplySorting(query, input);
        query = ApplyPaging(query, input);

        // EntityChanges ile birlikte getir (N+1 query önlenir)
        var auditLogRepository = (IAuditLogRepository)Repository;
        var auditLogsWithDetails = await auditLogRepository.GetListAsync(
            sorting: input.Sorting,
            maxResultCount: input.MaxResultCount,
            skipCount: input.SkipCount,
            includeDetails: true
        );

        // Mapping tek seferde yap
        var entityDtos = ObjectMapper.Map<List<AuditLog>, List<AuditLogDto>>(auditLogsWithDetails);
        
        // EntityChangeCount'u doldur (artık EntityChanges yüklü)
        foreach (var dto in entityDtos)
        {
            var auditLog = auditLogsWithDetails.FirstOrDefault(a => a.Id == dto.Id);
            dto.EntityChangeCount = auditLog?.EntityChanges?.Count ?? 0;
        }

        return new PagedResultDto<AuditLogDto>(
            totalCount,
            entityDtos
        );
    }

    // Audit Log kayitlarini gormek istiyoruz fakat degistirmek istemiyoruz
    [RemoteService(IsEnabled = false)]
    public override Task<AuditLogDto> CreateAsync(AuditLogDto input)
    {
        return null;
    }

    [RemoteService(IsEnabled = false)]
    public override Task<AuditLogDto> UpdateAsync(Guid id, AuditLogDto input)
    {
        return null;
    }

    [RemoteService(IsEnabled = false)]
    public override Task DeleteAsync(Guid id)
    {
        return null;
    }
}